Assuming this achieves some mainstream success, Apple offers "the bullet or the bribe" (get bought out or we just rebuild your product in house and destroy your business) in 3... 2...
Getting bought out by Apple is basically their only option for mainstream success on iOS because of the way iOS's keyboards are locked down. A keyboard like this loses a lot of its usefulness if every app has to implement it via SDK separately, because it is far better to have a consistent keyboard system across all apps.
So I'm cynical too but from a different angle -- Apple has already fixed the game when it comes to alternate keyboards (unlike Android where you can install 3rd party keyboards that work system-wide).
too cynical?